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Date: Tue, 14 Jan 2014 09:34:35 +0100
Message-ID: <CANq1E4SPwC5rDE8MKEdjNscuZHNZkdiNJFbQC-hgJ_fGLvxYkA@mail.gmail.com> (sfid-20140114_093439_468766_721380E5)
Subject: Re: Exporting the TSF to userland
From: David Herrmann <dh.herrmann@gmail.com>
To: Kalle Valo <kvalo@adurom.com>
Cc: Pierre Bourdon <delroth@gmail.com>,
	Johannes Berg <johannes@sipsolutions.net>,
	linux-wireless <linux-wireless@vger.kernel.org>
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Sender: linux-wireless-owner@vger.kernel.org

Hi

On Tue, Jan 14, 2014 at 9:26 AM, Kalle Valo <kvalo@adurom.com> wrote:
> David Herrmann <dh.herrmann@gmail.com> writes:
>
>>> Either nl80211 or debugfs. Maybe debugfs is better because this is more
>>> or less a hack?
>>
>> It's supposed to be a real interface used to calculate timestamps for
>> mpeg streams, iirc. So debugfs is no option here.
>
> And how is sysfs any better? If you use sysfs right now I don't see why
> debugfs would be any worse. You just need to check from your application
> that it's mounted and find the location.

We don't guarantee debugfs API stability across kernel-releases. At
least my experience is that debugfs is highly discouraged to be used
as stable API interface, except for debug-applications. Anyhow, if you
have different rules in ./net/mac80211, feel free to put it there. At
least it's better than having no interface at all.

Thanks
David